Impurity removing and screening device for rice seeds

The utility model relates to the technical field of rice seeds, and discloses an impurity removing and screening device for rice seeds, which comprises an equipment main body, and a screening mechanism is arranged in the equipment main body. A servo motor drives a rotating rod to rotate, so that the rotating rod drives a connecting block to rotate, the connecting block drives one end of a moving rod to beat the bottom of a screening net, the screening net is stressed to drive a sliding groove to slide outside a limiting rod, the sliding groove stretches a first spring, and the first spring increases the shaking amplitude of the screening net; impurities in rice seeds can be screened out through a screening net, operation is easy and fast, the screening net is pulled so that the screening net can make contact with the top of the equipment body to the maximum extent, the impurities screened at the top of the screening net can be cleaned, cleaning is convenient, and a reciprocating lead screw is in threaded conn